fashion plate vs gallant

fashion plate and gallant both are nouns.

Word	Noun	Adjective	Verb	Adverb
fashion plate	Yes	No	No	No
gallant	Yes	Yes	No	No

As nouns, fashion plate and gallant are synonyms defined as:

fashion plate and gallant: a man who is much concerned with his dress and appearance

Other synonyms of fashion plate include beau, clotheshorse, dandy, dude, fop, sheik, swell.

fashion plate (noun)	gallant (noun)
a plate illustrating the latest fashion in dress	a man who attends or escorts a woman
a man who is much concerned with his dress and appearance	a man who is much concerned with his dress and appearance

fashion plate (adjective)	gallant (adjective)
	unflinching in battle or action
	being attentive to women like an ideal knight
	having or displaying great dignity or nobility
	lively and spirited